生物名称英文励志句子，学英语谚语、谜语。

English Proverbs:1.Every cloud has a silver lining.2.Feed a cold and starve a fever.3.Do as you would be done by.English Riddles:1.When you fill me up, I still look empty. What am I?2.I have a mouth, but no teeth. What am I?Learn the following by heart记住下列英文知识...